[source] ipq806x: add CPU idle states
LEDE Commits
lede-commits at lists.infradead.org
Wed Nov 16 02:11:05 PST 2016
blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/506dc815b9fc6869402c6a0157a1bdf27a89b9a3
commit 506dc815b9fc6869402c6a0157a1bdf27a89b9a3
Author: Pavel Kubelun <be.dissent at gmail.com>
AuthorDate: Fri Nov 4 20:22:17 2016 +0300
ipq806x: add CPU idle states
Signed-off-by: Pavel Kubelun <be.dissent at gmail.com>
---
target/linux/ipq806x/config-4.4 | 1 +
.../files/arch/arm/boot/dts/qcom-ipq8065.dtsi | 12 +++++
...cpuidle-Add-cpuidle-support-for-QCOM-cpus.patch | 29 +++++++++++
...> 303-add-saw_l2-and-sns-into-ipq8064-DT.patch} | 0
.../304-add-cpu-idle-state-into-ipq8064-DT.patch | 60 ++++++++++++++++++++++
5 files changed, 102 insertions(+)
diff --git a/target/linux/ipq806x/config-4.4 b/target/linux/ipq806x/config-4.4
index 252e53a..7094965 100644
--- a/target/linux/ipq806x/config-4.4
+++ b/target/linux/ipq806x/config-4.4
@@ -49,6 +49,7 @@ CONFIG_ARM_L1_CACHE_SHIFT_6=y
# CONFIG_ARM_LPAE is not set
CONFIG_ARM_PATCH_PHYS_VIRT=y
CONFIG_ARM_QCOM_CPUFREQ=y
+CONFIG_ARM_QCOM_CPUIDLE=y
# CONFIG_ARM_SMMU is not set
# CONFIG_ARM_SP805_WATCHDOG is not set
CONFIG_ARM_THUMB=y
diff --git a/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8065.dtsi b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8065.dtsi
index f09ec92..fcc08d9 100644
--- a/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8065.dtsi
+++ b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8065.dtsi
@@ -36,6 +36,7 @@
cooling-min-state = <0>;
cooling-max-state = <10>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_SPC>;
};
cpu1: cpu at 1 {
@@ -54,6 +55,7 @@
cooling-min-state = <0>;
cooling-max-state = <10>;
#cooling-cells = <2>;
+ cpu-idle-states = <&CPU_SPC>;
};
L2: l2-cache {
@@ -65,6 +67,16 @@
qcom,l2 {
qcom,l2-rates = <384000000 1000000000 1200000000>;
};
+
+ idle-states {
+ CPU_SPC: spc {
+ compatible = "qcom,idle-state-spc",
+ "arm,idle-state";
+ entry-latency-us = <400>;
+ exit-latency-us = <900>;
+ min-residency-us = <3000>;
+ };
+ };
};
cpu-pmu {
diff --git a/target/linux/ipq806x/patches-4.4/181-cpuidle-Add-cpuidle-support-for-QCOM-cpus.patch b/target/linux/ipq806x/patches-4.4/181-cpuidle-Add-cpuidle-support-for-QCOM-cpus.patch
new file mode 100644
index 0000000..b766ec0
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/181-cpuidle-Add-cpuidle-support-for-QCOM-cpus.patch
@@ -0,0 +1,29 @@
+From 252a4e72dfd7add3c37604449fd20db29d84c6f8 Mon Sep 17 00:00:00 2001
+From: Lina Iyer <lina.iyer at linaro.org>
+Date: Wed, 25 Mar 2015 14:25:29 -0600
+Subject: ARM: cpuidle: Add cpuidle support for QCOM cpus
+
+Define ARM_QCOM_CPUIDLE config item to enable cpuidle support.
+
+Cc: Stephen Boyd <sboyd at codeaurora.org>
+Cc: Arnd Bergmann <arnd at arndb.de>
+Cc: Kevin Hilman <khilman at linaro.org>
+Cc: Daniel Lezcano <daniel.lezcano at linaro.org>
+Signed-off-by: Lina Iyer <lina.iyer at linaro.org>
+---
+ drivers/cpuidle/Kconfig.arm | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/cpuidle/Kconfig.arm
++++ b/drivers/cpuidle/Kconfig.arm
+@@ -74,3 +74,10 @@ config ARM_MVEBU_V7_CPUIDLE
+ depends on ARCH_MVEBU && !ARM64
+ help
+ Select this to enable cpuidle on Armada 370, 38x and XP processors.
++
++config ARM_QCOM_CPUIDLE
++ bool "CPU Idle Driver for QCOM processors"
++ depends on ARCH_QCOM
++ select ARM_CPUIDLE
++ help
++ Select this to enable cpuidle on QCOM processors.
diff --git a/target/linux/ipq806x/patches-4.4/176-add-saw_l2-into-ipq8064-DT.patch b/target/linux/ipq806x/patches-4.4/303-add-saw_l2-and-sns-into-ipq8064-DT.patch
similarity index 100%
rename from target/linux/ipq806x/patches-4.4/176-add-saw_l2-into-ipq8064-DT.patch
rename to target/linux/ipq806x/patches-4.4/303-add-saw_l2-and-sns-into-ipq8064-DT.patch
diff --git a/target/linux/ipq806x/patches-4.4/304-add-cpu-idle-state-into-ipq8064-DT.patch b/target/linux/ipq806x/patches-4.4/304-add-cpu-idle-state-into-ipq8064-DT.patch
new file mode 100644
index 0000000..9a8795a
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/304-add-cpu-idle-state-into-ipq8064-DT.patch
@@ -0,0 +1,60 @@
+From 3985d2c24d96f72211488fc6ebb53b032e4d0a05 Mon Sep 17 00:00:00 2001
+From: Pavel Kubelun <be.dissent at gmail.com>
+Date: Sun, 6 Nov 2016 19:02:34 +0300
+Subject: [PATCH] ipq806x: add cpu idle state into ipq8064 DT
+
+Signed-off-by: Pavel Kubelun <be.dissent at gmail.com>
+---
+ arch/arm/boot/dts/qcom-ipq8064.dtsi | 16 ++++++++++++++--
+ 1 file changed, 14 insertions(+), 2 deletions(-)
+
+diff --git a/arch/arm/boot/dts/qcom-ipq8064.dtsi b/arch/arm/boot/dts/qcom-ipq8064.dtsi
+index cb9c41d..8c989c0 100644
+--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
++++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
+@@ -18,7 +18,7 @@
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+- cpu at 0 {
++ cpu0: cpu at 0 {
+ compatible = "qcom,krait";
+ enable-method = "qcom,kpss-acc-v1";
+ device_type = "cpu";
+@@ -31,9 +31,10 @@
+ clock-latency = <100000>;
+ cpu-supply = <&smb208_s2a>;
+ voltage-tolerance = <5>;
++ cpu-idle-states = <&CPU_SPC>;
+ };
+
+- cpu at 1 {
++ cpu1: cpu at 1 {
+ compatible = "qcom,krait";
+ enable-method = "qcom,kpss-acc-v1";
+ device_type = "cpu";
+@@ -45,6 +46,7 @@
+ clock-names = "cpu", "l2";
+ clock-latency = <100000>;
+ cpu-supply = <&smb208_s2b>;
++ cpu-idle-states = <&CPU_SPC>;
+ };
+
+ L2: l2-cache {
+@@ -56,6 +58,16 @@
+ qcom,l2 {
+ qcom,l2-rates = <384000000 1000000000 1200000000>;
+ };
++
++ idle-states {
++ CPU_SPC: spc {
++ compatible = "qcom,idle-state-spc",
++ "arm,idle-state";
++ entry-latency-us = <400>;
++ exit-latency-us = <900>;
++ min-residency-us = <3000>;
++ };
++ };
+ };
+
+ cpu-pmu {
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